A Honda Civic swerved across all lanes of traffic about 1:30 a.m., struck a concrete barrier, then hit the trailer of a semitruck hauling 7,000 gallons of gasoline and 1,000 gallons of diesel fuel, Utah Highway Patrol officials said.

The impact caused the semitruck to roll and catch fire as the fuel ignited. The diesel and gasoline spilled onto the road, and the tall flames scorched the freeway, burning for several hours.

The two drivers involved in the crash were taken to local hospitals with minor injuries, according to Utah Department of Transportation's John Gleason. Troopers believe drowsy driving may be the cause behind the crash.

"You can imagine the intensity of the fire if it’s damaging concrete like this, and I was chipping away pieces of the concrete barrier here," Gleason said.

Here’s video of the concrete barrier damaged from the intensity of the tanker fire on I-15 southbound near 1800 S. UDOT crews will replace about 333 feet of burned and damaged barrier. pic.twitter.com/uKeIRoSDEp

Both north and southbound I-15 closed around the time of the crash, but northbound opened soon after. Southbound remained closed near 1900 South for several hours as crews worked to extinguish the fire.

"I-15 is our most heavily-trafficked road. Terrible place for this to happen. Terrible time for it to happen, heading into the morning commute," Gleason said. "Two-hundred-and-seventy-thousand cars pass here on an average day. This is not the time or place you want something like this to happen."

The HOV lane and one other left lane reopened shortly after 7 a.m., as did the southbound collector ramp which allows commuters to access I-80 then get back onto southbound I-15, Gleason said.

Crews opened two more lanes about 10 a.m. and then the last lane about 4 p.m. in time for the evening commute. Crews temporarily patched the road with asphalt and will install a permanent concrete fix sometime in the coming weeks when the weather becomes warmer, Gleason said.

I just learned that our UDOT crews must repair 12 to 13 concrete panels, and replace 333 feet of concrete barrier. We will also assess damage to the drainage system caused by an explosion when gas from the tanker leaked into the pipes. pic.twitter.com/QG8BtE9q2x

UDOT crews preparing the road for the temporary patch. We’ll be able to put in the permanent fix sometime in the coming weeks when temperatures are warmer. We should be able to open the final I-15 SB lane sometime late this afternoon. pic.twitter.com/eWVBKOJhOa

Delays from the crash stretched all the way back to Davis County during the Friday morning commute, but traffic is now moving fairly quickly along I-15. Officials urge evening commuters to slow down when they pass the area.

Get traffic updates on KSL Newsradio and check commute times on the KSL Traffic Page.